Things to do today

EASTER HOLIDAYS: The school holidays are here, and there's plenty going on in London including family exhibitions, nature trails, egg hunts and museum workshops. Take a look at what's on near you, whatever their age, and whatever your budget.

CHERNOBYL DISASTER: It's 30 years since the Chernobyl disaster, but what consequences has it had on food production and consumption in Europe? That's what's being explored in this new mixed media exhibition, which opens today. Rich Mix, free entry, just turn up, 6-28 April

SAMPLE SALE: Grab some incredible discounts on the last day of the Whistles Sample Sale in Shoreditch. Protein Studios, free entry, just turn up, 8am-7pm

FROM THE SOMME: Hear the story of how the British and Canadian forces were able to win the Battle of Arras over the Germans in 1917, despite the fact that inexperienced pilots were pitted against Germany's Red Baron. The National Archives (Kew), free, book ahead, 2pm-4pm

MEGACITIES: As the world's population grows, megacities will become increasingly common. Find out about some of the challenges of designing megacities, such as providing enough food for the inhabitants and keeping the air clean enough to breathe. Barnard's Inn Hall, free, just turn up, 6pm-7pm

GIRL ON GIRL: Artists Juno Calypso and Maisie Cousins are just some of those taking part in this panel discussion about female photographers and the female gaze. It's to celebrate the launch of new book Girl On Girl. Photographers' Gallery, free, just turn up, 6pm-8pm

SEEING ANIMALS: TV ratings and exhibition attendance show that the natural world has never been more popular. This talk seeks to study how this increased engagement affects conservation efforts. Wellcome Collection, free, book ahead, 7pm-8.30pm

SUPPER TALK: Hear a talk that covers the social history of flax, an incredible fabric that we all rely on everyday. You'll learn the origins of everyday terms such as spinster, heckler and lingerie. Tickets include a drink and there's a chance to eat either before or after the talk. Chelsea Physic Garden, £17 (and another £19 for the meal), book ahead, 7pm-8pm

MARIOKE: A mash-up of karaoke and video games — what could be more ideal? Marioke has a selection of popular tunes — all re-written to make them about video games — to be sung to the crowd. The Loading Bar (Stoke Newington), £7, book ahead, 7pm-11.30pm

COMEDY SHOW: Annie McGrath, Lou Sanders and Stuart Laws are among the comedians on the bill at this bargain-cheap comedy night. The Star of Kings (King's Cross), £3, book ahead,8pm-10.30pm

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Round up the kids for a day of Tudor tales and treats

As part of the month-long Cityread book festival, get transported back to the 16th century for some historical fun and games at Charterhouse on Good Friday.

Gather round the storyteller in the atmospheric old chapel, make delicious old fashioned sweets, and take part in a traditional Tudor dance workshop. Running from 11am-3pm, this children's event is all inspired by Cityread's 2017 book of choice, Prophecy, which is set in Elizabethan London. Young Londoners are sure to have a ball — and may learn something about London's past too.

Art review: quantum ceramics

Nadav Drukker is a quantum physicist who also makes ceramics, and he doesn't separate the two. The pieces in this show are covered with equations looking at ideas as complex as String Theory. The strange combination makes for some unique and intriguing works. Nadav Drukker: Quantum Ceramics at Knight Webb Gallery, 54 Atlantic Road, Brixton, SW9 8PZ,until 8 April, free ★★★★☆ (Tuesday-Saturday) Tabish Khan

Theatre review: turn on the hot tap

The ultimate 'backstage musical', 42nd Street lifted America from the Depression. Its timely, majestic arrival at Drury Lane is still an evening of total escapism and total delight as you share the hopes and dreams of fresh-off-the-bus Peggy Sawyer (Clare Halse, bloody marvellous), breaking into the Broadway big-time via Sheena Easton's broken ankle. Easton is in fine, warm voice but it's her young replacement who will tap her way into your heart.

If An American in Paris is an Impressionist painting, 42nd Street is a glorious vivid-coloured cartoon. Amazingly, there were only five songs in the 1933 film, but the Al Warren and Harry Dubin back catalogue delivers fifteen showstoppers from We're In The Money to Shuffle Off To Buffalo and Lullaby Of Broadway, each one more overwhelming than the last. Incredible. 42nd Street, Theatre Royal Drury Lane, Catherine Street, WC2B 5JF, £25-125,booking until 22 July [Monday-Saturday] ★★★★★ Cholly Knockerbocker

Good cause for the day

DIRTY DANCING: Prepare for a dazzling evening as Blackheath's Mycenae House is transformed into the Kellerman's Holiday Resort for the 30th anniversary of Dirty Dancing. You'll watch the film then dance all that passion out afterwards. All proceeds go towards Debbie's Fight for Life, which is raising money for a lifesaving operation for a mum-of-three, that's currently unavailable in the UK. Mycenae House, £9, book ahead, 7 April, 7pm-11pm

Funzing

Sex & Relationship mentor Colin Richards will will explain how our early life influences effect our attractions to others and our subsequent sexual behaviours. Colin will also then show you how by adopting a new way of listening and communicating, you can go a long way to overcoming repeated behaviour patterns to achieve the relationship and sexual connection you really want. Get tickets

The London Undergound is over 150 years old, and it's seen a thing or two in its time. Are you brave enough to face the ghosts of the Underground? Travel through the home of the Bank's Black Nun, learn about the elderly angel who saved a tube worker from death, and come to face to face with Farringdon's screaming spectre. Bring your oyster card and discover the hidden secrets of the Underground.
You'll need to have an Oyster card or travelcard for this event.
More information and tickets here: http://bit.ly/2fUVIsV (sponsor) Get tickets

Explore the mystical world and reconnect with your inner goddess (or god) through practices like astrology, herbalism and tarot at Anoushka's magikal Moonlight Goddess gathering. The practices will also teach you how to apply what you learn to the physical realm of your everyday life.
Get tickets